Year	% of GDP
1985	10.263661452534944
1986	8.634556173003068
1987	14.195366262894913
1988	8.56435892711432
1989	14.392491748570727
1990	8.703941360298353
1991	11.681514043822288
1992	5.143710486372911
1993	12.111576469772302
1994	5.417275124800775
1995	6.017278401086386
1996	3.7375572973995705
1997	6.04074612248643
1998	0.6653033186760235
1999	2.418028682149638
2000	1.3279678495245855
2001	1.4898836473421802
2002	4.200173483354443
2003	6.755630908134064
2004	6.587317715306218
2005	15.349424460607958
2006	8.007473852965841
2007	7.337433565634803
2008	-1.504730951650958
2009	9.85453402590192
2010	3.213134337527467
2011	1.9517303182776433
2012	10.882479296512209
2013	3.9325230239349076
2014	0.5922942899304673
2015	11.284725416980187
2016	6.685333170042315
2017	7.531066403578117
2018	5.514660083351061